X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

Untreated Gemstones Weight
Untreated Gemstones Size
Untreated Gemstones Clarity
Untreated Gemstones Price
Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Untreated Gemstones
Black Untreated Gemstones
Blue Untreated Gemstones
Brown Untreated Gemstones
Golden Untreated Gemstones
Gray Untreated Gemstones
Green Untreated Gemstones
Multicolor Untreated Gemstones
Orange Untreated Gemstones
Pink Untreated Gemstones
Purple Untreated Gemstones
Red Untreated Gemstones
Turquoise Untreated Gemstones
Violet Untreated Gemstones
White Untreated Gemstones
Yellow Untreated Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All
ID: 706476
Weight: 16.41ct
Size: 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 33.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 736607
Weight: 1.48ct
Size: 8.5 x 7.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 687131
Weight: 14.58ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 477189
Weight: 2.23ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 17.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 707085
Weight: 2.52ct
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 410320
Weight: 5.96ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 39.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 585687
Weight: 8.89ct
Size: 16.7 x 12.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 58.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 480841
Weight: 2.65ct (total)
Size: 3.7 x 3.7 mm
Clarity: Transparent
Content: 30 pcs
Price: $ 22.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 400390
Weight: 2.28ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 397291
Weight: 6.04ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 534726
Weight: 3.14ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 484880
Weight: 2.59ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 170.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 413556
Weight: 7.63ct
Size: 12 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 22.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 694832
Weight: 46.28ct
Size: 36 x 19.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 687808
Weight: 1.64ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 458682
Weight: 1.79ct (total)
Size: 4.3 x 3.4 mm
Clarity: VS
Content: 6 pcs
Price: $ 236.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 375948
Weight: 5.10ct
Size: 12.4 x 9.6 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 33.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 695149
Weight: 76.96ct
Size: 51.3 x 37.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 73.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 556533
Weight: 2.84ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 23.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 376314
Weight: 5.49ct (total)
Size: 6.8 x 6.1 mm
Clarity: Transparent
Content: 4 pcs
Price: $ 42.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 388353
Weight: 4.66ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 30.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 528896
Weight: 1.66ct
Size: 8.1 x 6.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 32.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 664140
Weight: 1.05ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Price: $ 8.82
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 606867
Weight: 24.15ct (total)
Size: 16.9 x 13.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 37.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 416353
Weight: 0.94ct
Size: 16.5 x 2.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 713741
Weight: 0.93ct
Size: 7.8 x 6.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 7.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 480712
Weight: 2.21ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 20.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 425002
Weight: 2.11ct
Size: 15.5 x 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 55.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 710383
Weight: 2.83ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 481421
Weight: 0.98ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 23.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 390595
Weight: 2.63ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 169.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 706388
Weight: 11.95ct
Size: 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 720885
Weight: 1.21ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 10.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 605621
Weight: 4.90ct
Size: 12.6 x 12.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 64.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 389480
Weight: 4.18ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 25.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 706357
Weight: 11.19ct
Size: 15 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 657252
Weight: 4.24ct
Size: 17.5 x 11.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 387581
Weight: 3.21ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 21.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 730215
Weight: 1.35ct
Size: 9 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 81.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 549025
Weight: 2.03ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 13.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 660346
Weight: 1.22ct
Size: 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 666848
Weight: 3.50ct
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 59.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 451175
Weight: 1.37ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 12.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 489487
Weight: 1.95ct (total)
Size: 4.8 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 38.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 717967
Weight: 0.09ct (total)
Size: 2.1 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 86.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 715771
Weight: 0.64ct
Size: 6.4 x 3.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 647742
Weight: 1.19ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 31.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 390275
Weight: 1.10ct
Size: 7.6 x 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 71.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 456638
Weight: 2.23ct
Size: 11.2 x 8.3 mm
Clarity: VS
Content: 1 pc
Price: $ 20.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 435433
Weight: 5.11ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 33.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 725722
Weight: 1.65ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 15.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 548659
Weight: 1.33ct
Size: 6.5 x 6.2 mm
Clarity: VS
Content: 1 pc
Price: $ 60.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 555602
Weight: 1.51ct
Size: 7.5 x 4.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 39.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 718115
Weight: 0.02ct
Size: 1.9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 385549
Weight: 8.70ct (total)
Size: 20.8 x 10.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 77.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 649915
Weight: 27.93ct
Size: 27.3 x 23.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 431446
Weight: 3.59ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 85.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 390659
Weight: 1.58ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 101.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 598607
Weight: 3.32ct (total)
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 4.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 706455
Weight: 8.52ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.38
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
746
Choose Page
1 - 774

FAQs

What are loose untreated gemstones?

Loose untreated gemstones are natural stones that have not undergone any artificial treatments or enhancements. Examples include unheated sapphires, untreated rubies, and unenhanced diamonds, which maintain their natural beauty and originality.

Why should I choose untreated gemstones over treated ones?

Untreated gemstones, such as unheated topaz and virgin untreated stones, are valued for their authenticity and rarity. These certified untreated gems are perfect for collectors and those seeking ethically sourced, natural stones for unique jewelry designs.

Are untreated gemstones suitable for engagement rings?

Yes, untreated gemstones like GIA-certified natural gems, unenhanced diamonds, and untreated rubies are excellent choices for engagement rings. They offer timeless elegance and are ideal for creating one-of-a-kind designs that reflect personal style.

What makes rare untreated gems valuable for collectors?

Rare untreated gems for collectors, such as authentic untreated crystals and unheated and untreated stones, are prized for their natural appearance and limited availability. Their untouched state makes them highly desirable and a great investment.

How can I ensure the quality of loose untreated gemstones?

Always choose certified untreated gems, like GIA-certified natural gems, to guarantee authenticity and quality. These stones undergo thorough evaluation to ensure they meet the highest standards, making them ideal for both personal collections and jewelry projects.

What types of untreated gemstones are available?

Our collection includes a variety of untreated gemstones such as unheated sapphires, untreated rubies, unenhanced diamonds, and unheated topaz. Each stone is carefully selected to offer unmatched quality and natural beauty.

Are untreated gemstones more expensive than treated ones?

In many cases, untreated gemstones, like precious untreated gemstones and virgin untreated stones, can be more valuable due to their rarity and natural state. Their unique characteristics make them highly sought after by collectors and jewelry enthusiasts.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate
Enlarged Gemstone Image